This is for a MINT Condition Simaudio Moon 600i.
This would EASILY be worth a 10/10 for even the most picky of buyers.
However it is now over a year old. This was purchased 01/04/2011 and I have the original receipt.
Missing nothing, perfect condition. No smudges, no marks, no scratches, great looking box, all packaging manuals and warranty card included.
The Simaudio 600i has won MANY awards for it's quality of build and especially its sound. Hate to let it go, but as I am upgrading even further I am forced to let this go.
You can read the following below.
MOON 600i: Redefining the integrated amplifier
The MOON Evolution Series 600i offers rock-solid reliability, extreme flexibility and luxurious styling.
Over sized power supply uses a custom toroidal transformer design
Rated output of 125 watts/channel into 8 ohms and 250 watts/channel into 4 ohms
MOON’s "no overall feedback" amplification circuitry
New MOON output transistors, specifically designed for use in their amplifiers, provide tighter and more visceral bass performance
The MOON 600i Integrated Amplifier is designed to continue where the award-winning MOON i-7 left off. Intended to meet the needs of the most demanding music connoisseurs, it has a fully differential dual-mono design and rated at 125 watts/channel into 8 ohms. Using a variety of new technologies developed since the introduction of the Evolution Series, the MOON 600i offers authority, finesse and superb control and provides more sonic transparency and accuracy than ever before.
New technologies include
(1) The M-eVOL2 volume control, with a phenomenal 530 steps, allows for an extremely precise level adjustment just like the MOON P-8 Preamplifier.
(2) New MOON output transistors, specifically designed for use in their amplifiers, provide tighter and more visceral bass performance, as well as unprecedented linearity though out the entire frequency spectrum.
(3) An advanced input stage circuit which reduces noise and preserves image focus and integrity like never before. Although rated at “only” 125W per channel, the 600i embodies both authority and finesse at all levels that suggests a much more powerful amplifier, just like all MOON products before it.
Of course, key features you’d expect in an Evolution Series product are present such as MOON’s "no overall feedback" amplification circuitry, SimLink (an in-house developed protocol providing for communication between MOON components) and M-Lock (which protects your amplifier(s) and your speakers from possible signal overload), just to name a few, as well as both RS-232 and IR ports for custom-install environments.
Significant design features
RS-232 port for full unsolicited bidirectional feedback and firmware updates
IR input for external control
Our "No overall feedback" design resulting in genuine real-time amplification, more accurate musical reproduction with respect to tonality, virtually non-existent intermodulation distortion and the elimination of common phase errors resulting from feedback
Custom proprietary toroidal transformer design with lower magnetic, electrical and thermal loss, yielding an improved power transfer and lower regulation factor; the result is increased current speed and better dynamics
A dual-mono over-sized power supply
SimLink controller port allows for 2-way communications between other compatible MOON Evolution Series components
M-eVOL2 volume control circuit using MDAC’s (operating in a current steering R-2R configuration) which alter the audio signal’s amplitude yielding no sonic degradation of the signal, regardless of the selected volume setting
Proprietary MOON Bipolar output transistors with unprecedented gain linearity resulting in improved bass response and even more accurate sonic reproduction
M-Lock for “user selectable” maximum volume setting lock-out for each line input
“Gain offset” for each individual line input with a ±10dB range
Each line input is fully configurable to be “home-theater ready”, where the gain section of the 600i is bypassed
530 individual volume steps in 1dB and 0.1dB increments
An exceptionally short signal path , yielding a much faster transient response
12 Volt trigger output for remote operation
"Class A" output to 5 watts for greater efficiency
Four-layer PCB tracings for a dramatically improved signal-to-noise ratio
Ultra rigid chassis construction to minimize the effects of external vibrations
Accurate matching of the very finest quality electronic components in a symmetrical circuit design
Improved reliability through the elimination of moving parts
Low operating temperature for a longer than normal life expectancy
Type: Solid State
Configuration: Dual-Mono / Balanced
Class of operation – Amplifier: A/AB
Single Ended Inputs (RCA): 4 pairs
Balanced Inputs (XLR): 1 pair
Input Sensitivity: 490mV - 6.0V RMS
Input Impedance: 23,700 Ω
Monitor Loop: none
Variable / Fixed Line Output – switchable: 1 pair @ 50 Ω (RCA)
Output Device Types – Amplifier: Proprietary MOON BiPolars - 4 per channel
Output Binding Posts: Gold-plated WBT
Output Power @ 8 Ω: 125 Watts per channel
Output Power @ 4 Ω: 250 Watts per channel
Output Impedance: 0.03 Ω
Damping Factor: > 267
Volume Steps: 0.5 dB from 0-30 and 0.1dB from 30-80
Gain Control: M-eVOL2
Signal-to-noise Ratio – Preamplifier: 120dB (20Hz-20kHz)
Signal-to-noise Ratio – Amplifier: 105dB @ full power
Maximum Output Voltage: 35 Volts
Slew Rate: 35V/µs
Maximum Current – Peak: 30 amperes
Maximum Current – Continuous: 18 amperes
Frequency Response: 10Hz - 100kHz (+0/-3dB)
Crosstalk @ 1kHz: -100dB
THD (20Hz - 20kHz @ 1 watt):